CSMS 66916746·Operational·November 25, 2025·View on csms.cbp.gov ↗

Update Enhanced Air Cargo Advance Screening (ACAS)

Plain-English explanation

CSMS 66916746 is a U.S. Customs and Border Protection (CBP) Cargo Systems Messaging Service bulletin (operational), published on November 25, 2025. It carries the official CBP guidance brokers and importers must follow for the topic — "Update Enhanced Air Cargo Advance Screening (ACAS)". CSMS messages are the operational layer between Commerce determinations and at-the-border collections: when Commerce publishes a new rate, scope ruling, or instruction, CBP turns it into a CSMS that ACE/ACS systems and brokers act on.

Message body

Full text as published by U.S. Customs and Border Protection

CSMS # 66916746 - Update Enhanced Air Cargo Advance Screening (ACAS) U.S. Customs and Border Protection sent this bulletin at 11/25/2025 03:38 PM EST Cargo Systems Messaging Service CSMS # 66916746 - Update Enhanced Air Cargo Advance Screening (ACAS) On November 21, 2025, the “Notice of Enhanced Air Cargo Advanced Screening,” was placed on public inspection in the Federal Register which will be effective on November 21, 2025, at 12:01 a.m. eastern daylight time: Federal Register :: Enhanced Air Cargo Advance Screening (ACAS). 19 CFR 122.48b(d)(1) ACAS data elements. Some of the ACAS data elements are mandatory in all circumstances, some are conditional and are required only in certain circumstances, and others are optional. The following data elements are required to be submitted at the lowest air waybill level (i.e., at the house air waybill level if applicable) by all ACAS filers and are defined as set forth in § 122.48a unless otherwise provided in this paragraph (d)(1): Original ACAS Data Elements included: Shipper name Shipper address Consignee name Consignee address Cargo Description Total quantity based on the smallest external packing unit Weight Airway Bill The Enhanced ACAS data elements expanded the mandatory and conditional data element requirements to include the following: Enhanced Mandatory Data Elements (new): Consignee Email Consignee Phone Number Shipment Packing Location and/or Scheduled Shipment Pickup Location Ship to Party Verified Known Consignor* = yes or no Conditional Data Elements required if shipper is not a Verified Known Consignor (new): Shipper Email Shipper Phone Number Customer Account Shipping Frequency/Volume Customer Account Billing Type Customer Account Holder Customer Account Name Customer Account Issuer Customer Account Number Customer Account Shipping Frequency/Volume Customer Account Establishment Date Customer Account Billing Type Internet Protocol (IP) or MAC Address used during creation of Customer Account Conditional Data Elements required under certain conditions: Shipping cost IP or MAC address used to initiate the shipping transaction Biographic Data Uniform Resource Locator or “URL” of the product *Note: the Verified Known Consignor data element will be part of a known shipper program that will confer trusted trade partner benefits to vetted trade entities. This program will be initiated within the year which will allow CBP to review already established foreign Verified Known Consignor programs to concur with CBP vetting practices and accept established Verified Known Consignor numbers, noting that it is within CBP’s sole discretion to recognize established known consignor programs. By providing an approved Verified Known Consignor code, the ACAS filer/consignee will not have to provide most of the Enhanced ACAS data listed above. More information about the new known shipper program will be disseminated once established. CBP would like to highlight that there will be a one-year informed compliance period. ACAS filers are strongly encouraged to provide the optional data elements to expediate clearance. CBP will publish updated Advance Air Cargo Screening Implementation Guide (ACAS IG) on CBP.gov and future updates will be considered as CBP continues to engage with internal and external stakeholders. Policy questions can be directed to OFO-MANIFEST@cbp.dhs.gov . Questions regarding ACAS can be directed to ACAS-SUPPORT@cbp.dhs.gov . For additional information on the ACAS program and for updates please visit: https://www.cbp.gov/border-security/ports-entry/cargo-security/acas Update your subscriptions, modify your password or e-mail address, or stop subscriptions at any time on your Subscriber Preferences Page . You will need to use your e-mail address to log in. If you have questions or problems with the subscription service, please contact subscriberhelp.govdelivery.com . This service is provided to you at no charge by U.S. Customs and Border Protection . Privacy Policy | GovDelivery is providing this information on behalf of U.S. Department of Homeland Security, and may not use the information for any other purposes. Powered by Privacy Policy | Cookie Statement | Help

Frequently asked questions

What is CSMS 66916746?

CSMS 66916746 is a U.S. Customs and Border Protection (CBP) Cargo Systems Messaging Service bulletin titled "Update Enhanced Air Cargo Advance Screening (ACAS)". CSMS bulletins are the operational instructions CBP issues to brokers, importers, and ACE filers covering rate changes, system updates, scope guidance, and other day-to-day customs-operations changes.

When was CSMS 66916746 published?

CBP published CSMS 66916746 on November 25, 2025. The bulletin's instructions are typically operative as of the publication date unless the body specifies a different effective date.

Is the CBP CSMS the legally binding instruction?

Yes — for at-the-border filing and entry collection. CSMS messages translate Commerce's Federal Register determinations into operational CBP instructions that ACE/ACS systems and brokers execute. The Federal Register notice is the underlying legal authority; the CSMS is the operational implementation. Both should be read together when reconciling a rate or scope change.

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